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 <h1 class="title">SplQueue 类</h1>
 
 
 <div class="partintro"><p class="verinfo">(PHP 5 &gt;= 5.3.0, PHP 7, PHP 8)</p>
 

  <div class="section" id="splqueue.intro">
   <h2 class="title">简介</h2>
   <p class="para">
    SplQueue 类通过使用一个双向链表来提供队列的主要功能。
   </p>
  </div>

 
  <div class="section" id="splqueue.synopsis">
   <h2 class="title">类摘要</h2>
 

   <div class="classsynopsis">
    <div class="ooclass">
     
    </div>

    <div class="classsynopsisinfo">
     <span class="ooclass">
      <span class="modifier">class</span> <strong class="classname">SplQueue</strong>
     </span>

     <span class="ooclass">
      <span class="modifier">extends</span>
       <a href="class.spldoublylinkedlist.html" class="classname">SplDoublyLinkedList</a>
     </span>
     {</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 继承的常量 */</div>
    <div class="fieldsynopsis">
     <span class="modifier">public</span>
     <span class="modifier">const</span>
     <span class="type">int</span>
      <var class="fieldsynopsis_varname"><a href="class.spldoublylinkedlist.html#spldoublylinkedlist.constants.it-mode-lifo"><var class="varname">SplDoublyLinkedList::IT_MODE_LIFO</var></a></var>;</div>
<div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">const</span>
     <span class="type">int</span>
      <var class="fieldsynopsis_varname"><a href="class.spldoublylinkedlist.html#spldoublylinkedlist.constants.it-mode-fifo"><var class="varname">SplDoublyLinkedList::IT_MODE_FIFO</var></a></var>;</div>
<div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">const</span>
     <span class="type">int</span>
      <var class="fieldsynopsis_varname"><a href="class.spldoublylinkedlist.html#spldoublylinkedlist.constants.it-mode-delete"><var class="varname">SplDoublyLinkedList::IT_MODE_DELETE</var></a></var>;</div>
<div class="fieldsynopsis"><span class="modifier">public</span>
     <span class="modifier">const</span>
     <span class="type">int</span>
      <var class="fieldsynopsis_varname"><a href="class.spldoublylinkedlist.html#spldoublylinkedlist.constants.it-mode-keep"><var class="varname">SplDoublyLinkedList::IT_MODE_KEEP</var></a></var>;</div>


    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 方法 */</div>
    <div class="constructorsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><a href="splstack.construct.html" class="methodname">SplStack::__construct</a></span>()</div>

    <div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="splqueue.dequeue.html" class="methodname">dequeue</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="splqueue.enqueue.html" class="methodname">enqueue</a></span>(<span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="splqueue.setiteratormode.html" class="methodname">setIteratorMode</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span>): <span class="type"><span class="type void">void</span></span></div>


    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 继承的方法 */</div>
    <div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.add.html" class="methodname">SplDoublyLinkedList::add</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>, <span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.bottom.html" class="methodname">SplDoublyLinkedList::bottom</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.count.html" class="methodname">SplDoublyLinkedList::count</a></span>(): <span class="type">int</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.current.html" class="methodname">SplDoublyLinkedList::current</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.getiteratormode.html" class="methodname">SplDoublyLinkedList::getIteratorMode</a></span>(): <span class="type">int</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.isempty.html" class="methodname">SplDoublyLinkedList::isEmpty</a></span>(): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.key.html" class="methodname">SplDoublyLinkedList::key</a></span>(): <span class="type">int</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.next.html" class="methodname">SplDoublyLinkedList::next</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.offsetexists.html" class="methodname">SplDoublyLinkedList::offsetExists</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>): <span class="type">bool</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.offsetget.html" class="methodname">SplDoublyLinkedList::offsetGet</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.offsetset.html" class="methodname">SplDoublyLinkedList::offsetSet</a></span>(<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">int</span><span class="type"></span></span> <code class="parameter">$index</code></span>, <span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.offsetunset.html" class="methodname">SplDoublyLinkedList::offsetUnset</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$index</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.pop.html" class="methodname">SplDoublyLinkedList::pop</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.prev.html" class="methodname">SplDoublyLinkedList::prev</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.push.html" class="methodname">SplDoublyLinkedList::push</a></span>(<span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.rewind.html" class="methodname">SplDoublyLinkedList::rewind</a></span>(): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.serialize.html" class="methodname">SplDoublyLinkedList::serialize</a></span>(): <span class="type">string</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.setiteratormode.html" class="methodname">SplDoublyLinkedList::setIteratorMode</a></span>(<span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span>): <span class="type">int</span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.shift.html" class="methodname">SplDoublyLinkedList::shift</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.top.html" class="methodname">SplDoublyLinkedList::top</a></span>(): <span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.unserialize.html" class="methodname">SplDoublyLinkedList::unserialize</a></span>(<span class="methodparam"><span class="type">string</span> <code class="parameter">$data</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.unshift.html" class="methodname">SplDoublyLinkedList::unshift</a></span>(<span class="methodparam"><span class="type"><a href="language.types.declarations.html#language.types.declarations.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value</code></span>): <span class="type"><span class="type void">void</span></span></div>
<div class="methodsynopsis dc-description"><span class="modifier">public</span> <span class="methodname"><a href="spldoublylinkedlist.valid.html" class="methodname">SplDoublyLinkedList::valid</a></span>(): <span class="type">bool</span></div>

   }</div>
 
  </div>



 
 </div>
 
 
























<h2>目录</h2><ul class="chunklist chunklist_reference"><li><a href="splqueue.construct.html">SplQueue::__construct</a> — Constructs a new queue implemented using a doubly linked list</li><li><a href="splqueue.dequeue.html">SplQueue::dequeue</a> — Dequeues a node from the queue</li><li><a href="splqueue.enqueue.html">SplQueue::enqueue</a> — Adds an element to the queue</li><li><a href="splqueue.setiteratormode.html">SplQueue::setIteratorMode</a> — Sets the mode of iteration</li></ul>
</div>
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